Home / 785,523.60-1,177,507.80-385,837.20

Finding the Fourth Proportional to 785,523.60, 1,177,507.80 and 385,837.20

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Solution

The fourth proportional to 785,523.60, 1,177,507.80 and 385,837.20 is: 578,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,523.60 : 1,177,507.80 = 385,837.20 : x
  2. Step 2: Convert to fraction form
    785,523.60/1,177,507.80 = 385,837.20/x
  3. Step 3: Cross multiply
    785,523.60x = 1,177,507.80 × 385,837.20
  4. Step 4: Simplify right side
    785,523.60x = 454,326,312,530.16
  5. Step 5: Solve for x
    x = 454,326,312,530.16/785,523.60
  6. Step 6: Final answer
    x = 578,373.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.